Double-dipping is socially appalling, but is it microbiologically menacing? A group of researchers set out to find the truth behind this communal culinary crime, putting our snack table sins under the ...

To dip, or to double dip? That is the age-old question. If you’re anything like George Costanza in Seinfeld, the double-dip is standard play at any Christmas party, work function or weekend barbecue.